For a 12 gauge shotgun. es 13pc 12g Shtg Cl Kit Features: - Multi-function handle can be used w/traditional rods, pull cords and also functions as a screwdriver handle - Two piece solid brass rod •One phosphor bronze brush - One mop •One plastic slot tip •25 cleaning patches - One set of 6 driver bits - Custom molded tray in a clear top dual bond molded TPR locking case.